It happened....

So my friend and I (he's a male) had sex lastnight for the first time. We've known each other since we were very young, I'm 22 he's 26. We've been hanging out a lot he's been a big help in my life and we've been just enjoying each other's company, almost talking and texting everyday also (of course we flirt but nothing more ever happened). I went to his house and we were in his room talking and he made me laugh and he grabbed my chin and kissed me, then one thing lead to another we had sex. But now we're scared we will ruin the friendship we have because our feelings are obviously there and we're not ready to be in a serious relationship we have things we're working on he has a career already and Im only a few years away from my career goal, but we're so drawn to eachother 😫, what to do??