Whilst engaging in sexual activities I love using a stethoscope,as you mount your partner the stethoscope comes immediately into play as you explore parts of the body with it,place it under the breasts,onto the nipples,on the heart,around the vulva,against your scrotum etc as you gather momentum place it over the rolling titty flesh and bury it underneath for sheer soundtastic pleasure,the harder that you thrust press it firmer for the sensual feel it gives,there are also variations on the above as now on the market there are Stethoscopes that have a rubber probe on the end to insert alongside the penis in the vagina,another version has a rubber cage that fits around the balls,you will be delighted at the sounds you hear and the sexual pleasure this simple device can give,I like the visual effect as a sex doctor is exploring his partner,try it and see,you may like it,I do ! on the other hand both parties could engage in this activity followed by a latex gloved hand afterwards exploring those private parts.