My girlfriend (F24) and I (M24) have a pretty good sex life, about 5 times per week and we are both willing to dip our toes into new waters every now and then to keep things exciting. I am pretty built (180 pounds) and stand at 5’11”. My girlfriend is really small, 4’11” and about 105 pounds. She has a perfect body, slim waist, curvy hips, firm and perky tits (im not sure what size but they r not small). We have good vanilla sex but a couple times a week we would play dom/sub. I’ve always been dom and she’s always been sub. After a bit of convincing me that I won’t accidentally hurt her, we’ve both grown to love it very much. Our dom/sub sex includes but isn’t limited to: rough anal, blindfold, spanking, face fucking, you name it. It usually ends with her having had such a powerful orgasm she can’t function or do anything for the next half hour and just wants to curl up in my arms. Sometimes if it’s really rough she would start having tears and later on talk about how much she loved it with a huge smile. A few weeks ago we talked about our sex life and the conversation moved to things we could do with my ass. We love it when she rims my ass, and apparently there’s a male g-spot in the ass that is too far for her tongue or fingers. We decided to buy a strapon so she could peg me. She told me that we could go at my pace, and take however long I needed. The strapon still sits in the drawer because I haven’t felt compelled to bring it up. (I’m not scared or anything, just didn’t really think about it much). We didn’t do any further prep work or readying my ass to be fucked since we bought the strapon and my girlfriend understands that I might need time to think about it so she doesn’t push anything.