by FemFreak
I think you should do a second part where he's conflicted about what happened not in a "I regret this" kinda way but more of a "y do I want more?" Kinda way. Anyway u could do a second part where he sends her another email and they hook up again and he goes behind his girlfriend's back and had sex with hera and she seduces him into changing girlfriend's and he leaves his and becomes heras (sorry if it's a long comment)
You should make a sequel, but this time have his girlfriend get in on the action, maybe have him eat her out while he gets worked by her. And have some build up over the whole affair. The girlfriend angle is hot, but slightly left unfulfilled in this.