So this topic has reached my thought what if your friend came out and you had feeling for him/her would you kiss him/her because sometimes I think that would romantic if it was a slow kiss and other times I think it's unacceptable.
No. Sounds like a great scene in a movie, but no. Coming out is enough of an emotional mindfuck as is.
It'd be different if someone came out to you and told you they liked you. Coming out in and of itself, though... is not indicative of whether someone likes you in that way or not. Sure, they probably like you as a person and trust you, but anything further is unclear. For that reason, assuming they probably don't like you in that way and/or it's unclear, I recommend against kissing. It could be seen as abusing the trust placed upon you, and that's apt for a messy situation.
Personally kissing would be weird now that I think about it since you don't have any idea if the person likes you or not.
