American girlfriend getting deliciously fucked on cold rainy day

It was a rainy Sunday, and my girlfriend and I were lying naked next to each other in bed. Feeling aroused, I began to have sex with her from behind and she moaned in response. I then opened her legs and penetrated her tight pussy hard. Her face clearly showed her pleasure as she moaned. We also tried having sex in different positions like missionary and anal, getting caught up in the moment and having some intense sexual activity