Hi Dr. Chris,
thanks for your contribution.
Well, "having sex with a stethoscope" - do you mean to have the sexual act with the instrument as sex partner (for example as a women, to insert the stethoscope into your pussy, suck the nipples with a bell stethoscope thru the tubings, suck your clit with it in the same manner...; or as a man, "fucking" the stethoscope (wrap the tubes around the cock, squirt into the chest piece, rub the ear pieces under the foreskin until cumming...)
or
do you mean having sex with a person and during this, use the stethoscope for auscultation of the accelerated heart beat of the partner?
Well, for me and my partner, I can say, we/I do both ! Listening to each other's heart with a stethoscope is a great thing! But also using the stethoscope as "sex partner" :-), as masturbation aid, is very exiting for me, too. Have a look into my album "Sexual Stethoscope", and you'll find some pics of "Stethoscope Misuse"... I love it, and it gives me great pleasure - and a kick, when we use the stethoscope "after misuse" for the real purpose use.
All the best wishes for "Stethoscope Satisfaction":
RedStethGuy