She said, as I held her to me, running my hands through her hair, “Thank you, babe.” We lay there, just holding each other listening to each other...breathe, occasionally kissing each other. I was still hard and she said, “Ready for the final frontier? I’ve never done anal before.” “Neither have I. If you don’t want to, I understand; I don’t want to hurt you or make you feel obligated to do something you don’t want to.” “I’m a little scared, but I feel that you won’t hurt me, and I really want. ”“I’m in!” I responded eagerly and hopped in the back seat. We were pressed very close together with you partially on my lap but neither of us minded and I only half fought the growing erection in my pants. Meanwhile you didn’t seem to mind feeling it press against you in the crowded back seat.When we arrived at the location my friend and your sister began “blowing shit up” literally actually with the old mentos and soda trick as the car was parked on a nice gravel road far from prying adult. He reached her ankle and started to fuck her throat as he massaged her feet and toes. He had total control; she was unable to do anything other than let him do what he wanted. The moans emanating from her indicated that she was certainly not complaining. He felt his balls swell and the ache became almost painful. He speeded up his assault on her throat and could feel his knob end swelling. He tensed as hard as he could to stem the flow. When he could hold on no longer he withdrew and pushed. The sheets were drenched in sweat and whatever else and the room looked like a tornado hit it. The closet had been left open and I notice our secret cache of sex toys was out of its hiding spot. Some of those dildos and vibrators were laying around, bottles of lube were uncapped and clearly used. Inside our en suite bathroom her make up was everywhere and his car gone. Still a bit drunk, it hadn't fully dawned on me what was going on until I found my phone. I was just going to text Shauna to.