I don't know if I've just done something really stupid.

So I don't know if I've just done something really stupid. I was on omegle because I was tired and a bit drunk so I just went on to pass the time. I never and will never show my face on there and was talking to this guy. He was really sweet and I kinda fancy him and we were chatting for like 2 hours. He then flashed his p*nis for like 2 seconds and I flashed mine for even less than that. I know I probably shouldn't have but i was in the moment and wasn't really thinking. So then we got talking more then he said where he was from. He lives about 10 minutes away from my family home (i'm at uni) and he knows people that I know. He is really sweet and we swapped socials and have been talking on insta- he wished me good night and so did i. I'm a bit worried that he's going to tell them but by the sounds of it he doesnt really know them that well. But i'm not out to anyone. Should I be worried that he's going to say anything because I really don't want him to.. or am i just overthinking?