Captain's Pet is an article in Resident Evil Recollections. It was uploaded on 29 February 2016.
Wesker and William are spying on Rebecca and Billy who've just made it to the Umbrella Training Facility, and Birkin has no idea who the two uninvited guests are.
Wesker on the other hand immediately points out that the girl is a S.T.A.R.S. rookie, which made me chuckle as it's obvious he was keeping a close eye on the team's new face.
If you're wondering what I'm talking about go and play Resident Evil 2!