I've done something awful

[iAmHideous]

Help. I've done something completely awful. I went out for work drinks. I got drunk. Was having a nice time and a male colleague kissed me fully on the lips with tongues and I momentarily kissed him back and I feel terrible. I'm married with a 13month old and if my dh did this I would kill him. I feel awful. So I tell him? Help- I've never done anything like this before.

You're all so lovely. I'm going to keep it to myself. Def have the fear but you're absolutely right, no point in upsetting DH and potentially causing a huge fall out for nothing. Thank you all for helping me rationalize.