my biggest secret

i did something last week that i still feel so guilty about. my gf and i have a good thing going but it was just so intense and wild one night, like we couldn’t get enough of each other, she got on all fours and started grinding against me and oh man when i slid inside her from behind, wet and tight, she whispered dirty things and i lost control, pumping into her harder and faster until we both came together. is this normal? im scared it’s gonna drive a wedge between us.