After reaching a minimum level of affinity, Ivy will be open to flirting with the player. In the beginning, her arousal will slowly rise during the flirtations but nothing will happen. If her affinity is high enough then Ivy's erotic service menu becomes available. A message will popup on the screen to inform players that this is the case. 

Once the Erotic Memory Archive has been unlocked, if Ivy becomes aroused enough during flirting, she will offer a (non animated) sexual favor to the player, which will result in a (stamina) boost.

Modders are encouraged to add animations to these scenes using any animation framework of their choice.