Nah, my first time was with a girl I dated for 6 months. We waiting for quite a while, about 4 months. She just recently passed away. =/
12/13 year olds talking about sex and blowjobs make me go "eww".
Go and play with lego, ffs.
I guess she wouldn't leave you once she married you. But getting her to marry you is step too. A relationship isn't all about sex but it is still an important part (as long as you don't want her to cheat on you). Just wanted to tell you there are some flaws. Nothing against your decision.