Lily taps him on the shoulder, whispering into his ear.
"Another one? Barney! That's four different girls you've made out with in the last three hours!"
He shrugs, pointing at the bimbo's considerable assets, the corners of his mouth turning down as if to say "what are you gonna do?"
She hits him. "So, it doesn't bother you that Robin, who you claim to love, is sitting right there watching your every move?" She quirks an eyebrow, pointing at their booth.
He grins, showing his teeth. "What can I say? It's a sickness."
She rolls her eyes and walks away.