A muffled noise that sounds a bit like a squeak slips past the Doctor's lips, but his body is certainly responding to the, er, stimuli. He pulls back, just a breath. "You...have a very firm grip." His voice is low and smooth, as one hand returns to Ianto's hair, the Doctor searching his eyes. "We should...this is really very nice and I'm not objecting, please don't think I am, but..." he trails off, leaning in to kiss Ianto again.