sexting ://

I’ve sexted with 1 person my whole life n I dated them for a year n a half. someone new is trying it with me and im literally INTO it, I just feel such immense guilt when I do anything sexual with just any guy. I dont wanna feel guilty, I dont know what I even feel guilty towards, but I do. I think its cause I’ve convinced myself that sex is a super private and intimate thing so I can’t just share it with anyone. which thats probably a good outlook but I literally want to experience sexual things with people. Maybe I just need a boyfriend to not feel guilt about it I don’t know. Has anyone experienced this? What can I do to not feel guilt for anything related to sexual acts:/