Recently,my best friend asked me to participate in a threesome with he and his wife. I am pretty adventorous so i went along with it. His wife started to blow me and just when i was about to blow my load, she told me to try and get all of my semen in her mouth. Sure, i said. Can do. I must have filled her entire mouth with my juice and was standing there wondering why she wasn't spitting it out. She lent over to her husband, who was lying on the bed mastabating, and spat my semen into his mouth. I was too freaked out at the time to ask what the deal was, but later on i found out that it was a real turn on for him to have another guys love juice in his mouth while he mastabates. Weird! Is it normal?
Okay, so he's alittle gay, who cares? By itself, that's not odd. Most bisexuals eventually pick one lifestyle or the other; this one found a tolerant gal and got married. Good for him.
If your question is about swallowing cum, then the answer is "it's alittle off-beat, but not too strange" Gay guys frequently swallow each other's loads as part of sex. Some straight guys like swallowing their own loads, and many like their loads swallowed by their girl. Worldwide there's a WHOLE LOT of sperm-drinking going on that people just don't talk about much. Get over it.
Knowing that, maybe your question is more about the situation? Girl gets her best friend to cum in her mouth so she can snowball her husband with it... well, yeh. I don't imagine that's too normal. But mostly because of the surprise factor. And the secrecy... I mean, you know your friend's husband put her up to this! The whole reason your little threesome ever happened was because he wanted a taste of your cum.