"I... but... I'm not.... okay. Okay, I'll do it." You sigh resignedly, and shake your head. This was a bad idea, you're convinced of it, but you've got to follow through now. No choice. You've paid for the experience, might as well go for it.
"Oh, jeez. Not with an attitude like that, come on," your girlfriend says with a gruff snort as she stands up. You swear you can see her clothes start to flicker out of existence, which is good, because they won't fit her soon anyway. They're already looking awful tight around her fattening belly. "What's wrong?"
"It's just... I dunno, I thought we'd be doing something a little more... exotic, exciting is all... not... pigs." You sigh as you sit down, feeling a rumbling in your gut.
"Oh, don't be such a whiner," she sighs, and is clearly not feeling at all sympathetic. That stings a bit. "This is plenty exotic. It's non-human and feels wonderful. Don't knock it yet."
"I'm not, it's just... oh." You glance down at your nose, or rather your snout as it's beginning to become. "It's... starting."