Disclaimer: All characters belong to Joss...but would he ever have done this? Noooo. 
Pairing: Xander/Illyria
Rating: R
Setting: Probably some time late in or after DeadWar
Once he had thought Anya was hard to understand.
"Oh," Illyria says abruptly, and begins to moan. She writhes, and pants, and clutches at the sheets. "Alexander Harris!" she repeats, bucking her hips. "Alexander!"
When she stops, Xander is staring at her. "Was that not the correct expression in your body language for extreme sexual pleasure? We apologize for forgetting in the heat of the moment. The shell's memories--that is, Fred's--are somewhat lacking on the subject."
Xander sighs from across the bed. But who else would use that as an explanation? "During, Illyria, during. Afterwards...not so convincing."

Pairing: Xander/Illyria
Rating: R
Setting: Probably some time late in or after DeadWar
Once he had thought Anya was hard to understand.
"Oh," Illyria says abruptly, and begins to moan. She writhes, and pants, and clutches at the sheets. "Alexander Harris!" she repeats, bucking her hips. "Alexander!"
When she stops, Xander is staring at her. "Was that not the correct expression in your body language for extreme sexual pleasure? We apologize for forgetting in the heat of the moment. The shell's memories--that is, Fred's--are somewhat lacking on the subject."
Xander sighs from across the bed. But who else would use that as an explanation? "During, Illyria, during. Afterwards...not so convincing."