Error in my blowjob technique

So, I can't give head unless my boyfriend is laying down. I mean when he stands up the direction of the forskin just throws me off and I don't even get why 😂. The issue is I find it more kinky if he standing as it makes him more dominant and he obvious wants to stand because boys want what they can't have. We've tried it a few times and we ended up just stopping. 
Whereas my friend is the other way round to me and can only do it if the guy is standing up. Are we just crap?? Please say someone else has this issue and I'm not crazy 😂😂 and give advice if possible