I have a very strong relation with my girlfriend. We are both getting old. My girlfriend is 53, looks and behaves younger ( she joggs a lot). I am 68, but non health issues yet.We have a lot of sex, including anal.We are rectal température fans and thermometers play a big part in our sexgames.My girlfriend says that the way I enjoy her playing with the thermometer in my ass indicates that I would enjoy her fucking my ass with a strapoon.So, she wants to try it and suggests me to prépare for it by putting on plugs in my asshole.I am thrilled, but a bit afraid at her proposal. I am a virgin on this site and have never inserted anything bigger that a thermometer in my ass.My girlfriend says my reluctance shows I have a problem with my manhood. She says letting her fuck me with a strapoon would help me understand what she feels when I fuck her ass.Any advice on this ?And, by the way, do you know of a plug or rosebud that would incorporate a thermometer ?