Leaving to “take a nap” [MF]

(hi, first time writer. I’ll try to keep it as short and to the point as possible. Otherwise jump to *** for the spicy stuff. A bit long)
My SO (F26) and I (M25) spent Friday and Saturday by her wealthy family members apartment 8 min away from the beach. We ate a quick sat afternoon lunch together (amazing food, almost as good as the sex itself. I eat very well when we visit them) after lunch, we all head to the beach. They end up meeting some of their pals midway ( who are all mid 60’s and surprisingly smoke alot of weed) 2 hours into the beach chill, I tell them I need to take a nap before my shift tonight (I’m such a young and responsible gentleman after all ) we leave them and walk the 8 min back to the (empty) apartment. My SO is well aware what the plans were so she knew to go with it. We walk into the apartment, she goes to one bathroom to pee and change out clothing, I go to other bathroom to poop and wipe my self down (hygiene).
***We both head into our bedroom, quickly strip down, lower the window shades and get into bed meeting each other with a heavy make out session, I quickly move to sucking on her modest (but lovely) boobies while getting finger blasted switching between the ol’ 1-2 – flip, I’m rubbing her clit, sucking on her breast and gently rubbing her head. She lets a low moan slip with “oh I can’t wait for what’s about to happen” in a whisper. We get into spooning bone position and start to go at that pretty hard. I feel her ass slap against me with lovely amount of force while I still am fingering her clit and rubbing her nipple while I’m kissing her neck. I tell her that she’s about to make me explode (haven’t finished in 3 days and we/I just get overly horney which could have an effect sometimes. Know what I mean ?) “Not yet, I’m not done with you ” is her response. She gets on top of me in cowgirl. (Oh fuck, she is going to destroy me quickly I think) and she starts aggressively riding me. I’m squeezing her amazing butt and trying to hold pace, but my love is trying to fuck me silly at this point. I tell her I’m about to cum hard, she tells me to help her go faster and she starts to ride me even harder. I finish inside of her so hard and she is still riding me, draining the energy from me. After a few long seconds she hops off of me and goes to wash up. I passed out from exhaustion before she got back.

Source: reddit.com/r/gonewildstories/comments/h8olcm/leaving_to_take_a_nap_mf