Natasha informed me that I should plan to sleepover for our next encounter so I arrived on a Friday after work with my overnight needs in a small duffel. She then enriched the scene, explaining that Sarah - from the cupcake adventure - had an after hours work event and that soon she would be dropping-off Alison who would be staying over, as well.

Just a few minutes later, the doorbell rang. Sarah was indeed dressed for a somewhat formal affair and warned her niece to behave or ‘else’. Alison nodded acquiescence to her aunt but then gave me a sly wink. We retired to the family room to resume our Mario Kart competition. Natasha came in a bit later saying she needed to make a quick trip to the store. When I heard her car leave, I asked Alison, “Want a beer?”

“Sure, but do you think your ‘aunt’ would approve?” she countered.

“She’ll never know,” I replied confidently.

Natasha returned almost silently, actually startling us both by bellowing, “Are you two underage kids drinking beer?” We both stammered trying to respond but Natasha added, “Boris, go fetch my brush. You both are gonna get your heinies warmed before dinner.” I hurried to her room and returned a few moments later with the tool of our demise. Natasha was sitting in the center of the couch and Alison was standing facing her, ready for the spectacle.

While I held the brush, Natasha briskly lowered my pants and underwear, guided me over her knee and spent a good three minutes whacking my ass with the very effective brush. I looked over at Alison during the ordeal and she seemed to be thoroughly enjoying the view albeit well-aware that she was next.

Soon, I was standing in the same spot except my pants were around my ankles, my ass was ablaze and my cock was stiff as I watched Natasha forcefully apply the brush to Alison’s resplendent tush. After her cheeks were rosy and thoroughly roasted, Natasha ordered us to cover-up and set the table for dinner. We sat uncomfortably on the hard wooden chairs during the meal and were relieved to retire back to the softer couch afterwards.

Natasha read while we played. I had hoped she might busy herself elsewhere so Alison and I might play some other games but those tawdry ambitions were thwarted. A couple of times, Natasha left the room and I gave Alison a quick grope and she returned the favor. Eventually, Natasha said it was time for bed. I helped inflate a blow-up mattress in Natasha’s spare room where Alison would sleep. Then Natasha handed me a blanket and pillow as I was crashing on the couch.

I lay awake in the dark unable to sleep. I was just getting drowsy when I heard rustling and then a whisper, “Are you awake?” Alison, crawled under the blanket and snuggled close. She was warm and my one hand wandered under her tank-top and then the other inside her panties. In turn, she stroked me, both of us trying desperately to not make any noise. She pulled away and knelt. I could just see her silhouette in the dark. I thought she was disengaging but then bent down and took me in her mouth. Soon I was approaching climax and quietly warned, “I’m getting close.”

Just then a light came on the hallway behind me and I heard Natasha ask, “What’s going on here?” Alison pulled away in surprise, her face now illuminated just as the first spurt of cum landed diagonally from her right cheek bone to her chin. Subsequent emissions hit her face and neck, causing her to sputter in shock at the combination of the unexpected visitor and my ejaculation.

“You two are in deep trouble,” Natasha scolded as she pulled the belt from my pants and Alison wiped her face on the front of her tank-top. “Both of you kneel on the seat of the couch, facing the back,” Natasha ordered. She pulled my boxers fully down and then Alison’s panties, then alternatively whacked our bare asses with the heavy leather strap a dozen times each. “Back to your own room,” she scolded at Alison and merely looked at me with disappointment before heading back to her room and leaving me in the dark, my ass on fire but still quite satisfied by Alison’s oral ministrations.

We were having breakfast when Sarah arrived the next morning. The two ‘aunts’ chatted for a few minutes and Natasha recounted the evening’s events including the interrupted blowjob. Sarah scowled at Alison and barked, “I told you to be on your best behavior, right?” Alison nodded meekly. Sarah paused and then asked Natasha, “Do you have some garden shears?” Natasha opened a drawer and then handed them to Sarah, who gave them to Alison. “There’s a lovely willow out back. Go fetch a switch.”

Alison returned a few minutes later with a willow stalk and handed it to Sarah. “Bend over with your hands on your knees, young lady.” When her ‘niece’ was in position, the proceeded to slowly apply the thin whippy stem to Alison’s bare bottom. The switch would whoosh as it cut through the air and create a sharp smack as it hit Alison’s skin. In turn, Alison keened in true pain as a dark red line rose where the stem made contact. After ten, Sarah paused and inspected her work. “Cover-up,” she instructed and Alison gently pulled her underwear and shorts over her striped ass. She turned and I saw authentic tears on her cheeks.

Natasha quipped, “She was not the only guilty party. Boris, present your bare bottom for the switch.” I adopted the same pose and Sarah began to hand the switch to Natasha who replied, “Go ahead, you do it well.” I immediately realized why such a benign-looking thing caused tears. The switch bit very sharply, leaving an intense sting that did not subside and then my ass was bitten again and again.

A few minutes later, Sarah and Alison had left and I was sitting - rather uncomfortably - chatting over coffee with Natasha. “Wanna hear something funny?” she asked. I nodded and she continued, “I got up last night and was gonna quietly invite you to join me in my bed.”

“Just so I’d be more comfortable than on your couch or did you have something more recreational in mind?” I asked.

“A bit of the latter,” she answered, and paused to watch my reaction. “I stopped in the dark to listen when I heard a funny slurping sound and then it occurred to me that Alison had a similar idea.”

“So Alison and I both got whipped - twice - for the same sort of activity that you were planning?” I queried, tapping the switch against the countertop. She shrugged and then dismounted the stool beside me and slid her stretch pants down and bent over the stool. I picked up the switch and tapped it against her stunning bottom. I tried to keep the first five strikes parallel starting just below the top of butt crack and proceeding down so the fifth hit the crease between cheek and thigh. The remaining five filled in the gaps with some criss-crosses and overlaps.

She stood and then pushed the stretch pants fully off and moved to leave the kitchen. “Where ya going?” I asked.

She pulled off her t-shirt and replied, “I’m taking you back to bed and gonna ride you like a cowgirl!”