Well, Yaisa knows what she's doing, so even though that's definitely harder than people who intended her to like it have ever bitten her, her responding gasp will be eager and delighted, and her hands under Keltham's shirt will grip him tightly, and she'll wiggle in his lap, and when she's recovered she'll say 'do it again'. 

That is definitely harder than people who wanted her to enjoy it have ever bitten Yaisa.

Yaisa doesn't particularly mind this, and she does not at all want it to interrupt her flow of seducing Keltham here, but Carissa was incredibly insistent about this point: do not pretend to enjoy it. Even if it's really easy, even if for you the line between pretending to enjoy sex and actually enjoying sex is very thin, even if it's going to ruin the mood. It might be a test by Keltham; it's definitely a test by me. 

She whimpers, and has no idea at all internally whether or on what level that's a lie, but when she's recovered her voice she says, "bite me less hard than that, if me being a masochist is the point."

That is definitely harder than people who wanted her to enjoy it have ever bitten Yaisa.

Yaisa doesn't particularly mind this, and she does not at all want it to interrupt her flow of seducing Keltham here, but Carissa was incredibly insistent about this point: do not pretend to enjoy it. Even if it's really easy, even if for you the line between pretending to enjoy sex and actually enjoying sex is very thin, even if it's going to ruin the mood. It might be a test by Keltham; it's definitely a test by me. 

This was followed by training from Subirachs on this skill, which felt and still feels completely ridiculous but Yaisa is, actually, a fast learner, and very smart, even if 'smart' is not the angle from which she prefers to be perceived. 

She whimpers, and looks at Keltham.  "Bite me less hard than that, if me being a masochist is the point."