New to this stuff and oral sex?

Brigette🖤♌️
I'm kinda new to being sexual active since I'm a very committed relationships (3 years with my current BF). Okay this might sound silly but I NEVER seen his..dick before....I mean, I did seen it but only for a quick second lmao I know, I'm childish for an 18 year old and I know imma see it eventually if I want to give him oral (I have received oral from him.) 
How does it feel when you give oral to your man? 
How does cum taste? Lmao....some say it's terrible so I'm kinda nervous lmao! 
GIVE ME TIPS PLEASE, HELP A LADY OUT 😭😭😭😩😩😩