birthday, 41, asking out, mother mad, yes, confused!

Well hello my mind, guess what today is? It's my dads birthday today!!! Woohoo, he is turning 41 lol shhhh don't tell that i said how old he is haha ^^. Anyways, Mr. is trying to ask me out, and i want to say yes, but my mom will get sooo mad at me if I do and then I'll get in trouble. I would just hide it from her but I would feel guilty, and it's so hard for me to hide things instead of letting it be obvious through my facial expression. 

  I seriously have no idea on what to do, can someone please just give me the answers because I am just so confused on which path is the right path at this moment.

~Luna~