My (18f) brother (19m) walked in on me

I want to make this short and sweet as I'm currently on the bus and don't have much time but I can't stop thinking about it.

I was in my room and I had just been talking to this guy online, our conversation got heated and he told me to fuck myself for him on a video call, so after some convincing I started.

I was getting so hot, my pussy was drenched but I must have made some noise or something because my brother walked in and caught me in the act, my eyes widened in terror and I stopped completely, I was so vulnerable.

The guy on the call asked what was wrong and I locked eyes with my brother, as he took a seat on the other side of the room and waited patiently.. I couldn't tell the guy what had happened because he definitely would've though it weird... but at the same time it was a bit of a turn on..

My brother unzipped his pants to show his full erection and I just fucked myself hard as he jerked his cock off camera, I never came so hard before and honestly I think my brother came at the exact time I finished, because once I was done, he got up and left.

I haven't had a chance to talk to him, and I don't know if I can, I'm so conflicted but lowkey loved it..