Sex and rectal temp

It wasn't planned, it just happened that time years ago. I've got a sore throat and feeling like I'm on fire in the middle of the night. My husband takes my temp in my behind and about panics. He starts wrapping me in towels with cool water. They feel soooo good. About half an hour later he's taking my temperature again and then again a while later. My temp comes down by 2 degrees. Spontaneous, unexpected, whatever you call it. Panties off, his bottoms down and on the floor, we have great sex, trying not to wake the girls. It wasn't planned, but then one thing led to another.