oral sex

Penny
my bfriend wants me to swallow when i give him a bj. i kinda like it. the it feels when he cums in my mouth  lol  i dont mind the way his cum tastes. im just kinda afraid to try and swallow it all. afraid ill gag. a friend of mine told me that when she does, she can taste it for a really long time. is it gross? whats it like? is she right? spit or swallow:)