There is no reaction.
And then Eric makes a small, rumbliing noise and pulls his mouth away from Jemma's skin.
His lips are wet and sticky. His eyes are dark. Looking at Pam.

Once, they used to feed together.

And this is where he would normally kiss the one he is feeding from (if he wants to), making this into something else -

He scoops Jemma up and nods at Pam's bed.
"Do you want her -?"

Trying to be careful, still. Even if she has a very attractive jawline, when he holds her like this.