It was both believable and unbelievable at the same time. Believable because he knew they were doing something, but unbelievable that Peter would be so clumsy and mess it up - but the Alec thought about it a little longer and, no.. no that was definitely Peter.

An amused and interested grin crossed his expression and he waggled his eyebrows a little. "Messing around huh? Which base did you get to? Second? Third? Homerun?" Alec did not think for a second Peter had sex, but he couldn't help the teasing.