He groaned as Ianto bit his, yes those marks would be gone in seconds, but that didn't mean he didn't want more of them. He thrust hard and fast, running his hand up his boy's arm and holding the hands down, tight. He would leave pretty bruises for days on his wrists. He then used his other hand to moved his lover's neck to the side and lengthened his teeth. They bit down on the sensitive skin of his neck, the rich taste of blood hit his mouth. Moaning he thrust harder.