Kind of hypocritical of her, though, as she'll become a yandere down the line. Maybe she didn't realize another girl could snatch Virgin-kun away from her at this point.
didn't think of that; it would be neat if she actually thinks back on it later and contemplates how she'd feel about being on the receiving end. Many ways to make it interesting and/or entertaining.
Wait a minute...
In the chapter when they first had sex there wasn't any blood or discomfort on her end...
And before that her little sister mentioned something about her having some sort of romance related trauma...