Well I'm not prepared to make asumptions about Dons assumptions either.

I interpret his post to be evidence of how it can be very hard to judge who is telling the truth and whgo is telling the lie.

In the case of Dons story, there are reasons to believe both parties.

In the case of the girl, there is the question of her inexperience which supports her trustworthiness.

In the case of the guy, there is a well reasoned argument that gives credence to his denial.

I would probably have erred the other way to Don on the basis that the guys cool headedness in the face of accusations against him, and his ready to hand list of reasoned explanations comes across to me as just a bit prepared.

I also find it unlikely that a girl who has just lost her virginity would have the guile and deceit of some seasoned socialite.

It is not impossible that she just didn't want to go the whole way.

Remember being a teenager? "did you go the whole way?" She signed no contracts by kissing and touching.

(it is irrelevant whether she was a teenager or not, what is significant was her lack of experience)