The scene was not too full on, it was quite funny actually. However, the morality of the scene was a bit disturbing. Amy really is a slapper, and not one person in this thread can argue against that.
Assuming that a "slapper" is British slang for a woman who is sexually promiscuous -- i.e., a slut...
... no. She's not. Amy Pond is not a slapper.
Being sexually interested in a grand total of two men does not make a woman sexually promiscuous.
She has very low sexual morales and no respect for the love of her life, Rory.
Complete and utter bullshit.
Are you going to seriously argue that you've never had strong feelings for two people? That you've never loved two people at once?
If you haven't, well, hey, good for you.
But in real life, it happens sometimes. Someone gets engaged and then meets or re-meets someone else for whom they have strong feelings or with whom they are in love. And when that happens, they have to make a choice.
Let's bear in mind that Amy was recovering from her very first truly traumatic experience when she hit on the Doctor: She'd never really faced her own imminent death, and alone, before. She was stuck in the woods, with her eyes closed, a creature inside her brain trying to kill her, and surrounded by Weeping Angels.
Unlike you, I am simply unwilling to judge someone as having loose morals or no respect for her fiance because she made a poor choice, based upon pre-existing romantic feelings, in the wake of having faced the kind of trauma that most people never have to go through in their entire lives.
And bear in mind, too, that Amy didn't
really know who she loved until "Amy's Choice," two episodes later. It wasn't until she'd thought she'd lost him that she really understood that she loved Rory more than the Doctor.
And that happens. Sometimes, you just can't really gain self-insight into who you value most in your life until you've lost it.
And she made her choice, then. And she never went back on it. Yeah, sure, she made one joke about snogging the Doctor in "The Big Bang," but it was an obvious joke and Rory wasn't too bothered by it.
Hell, even when Rory had been
erased from her memory, she
still didn't hit on the Doctor.