Sup guys I'm 16 and in high school

Last night I got a bj from this kinda cute sorta chubby girl at a party. 2nd time we hooked up and I'm not really proud. She's not really that attractive I mean she's pretty but kinda chubby. A lot of people from school opened the door and saw and are gonna give me lots of shit for it.... I've been with much hotter girls and I'm pretty attractive. Is it always "okay" to hookup with an alright chick who's really into you and is doing all the work? I don't know why I regret it so much I'm probably just embarrassed about the people from school knowing......