Intense sex session with a guy in my girlfriend's home gym

Intense gym session turns into steamy sex with an Argentinian stud in his girlfriend's house. Amateur 18-year-old, ready to please, rides him hard in cowgirl, showcasing her cute yet big ass.

I'm not sure about what to write here. Maybe I'm just too tired to come up with something original. Anyway, let's get to the point. So, me and my girlfriend were chilling in her house and we decided to have some fun in the gym. She was trying to lift some weights and shit when I came up from behind and started feeling her ass through her leggings. That's when things got wild. She was like "hey, don't touch me!" but I was already hard as hell and I just couldn't stop myself. I took off her leggings and started banging her right there in the gym. It was pretty intense, I mean, hardcore as fuck. She's an amateur but she knows how to ride a dick. I came all over her cute face and then I filled her pussy with my sticky load. It was probably the best sex of my life.