A single dad whose into his kids? Clearly adores them and puts them first? Catnip for grown single women!!!
D, I know this is down the road quite a bit...but you have boys, which honestly, makes it even easier. I raised both. The teenage girls would have destroyed some female who wasn't related to them if she hadn't taken exactly the right approach. OMG! The competition, the moodiness, the cycles. I don't miss my daughters' teen years at all (well, ok, there are parts I miss...LOL)
Your family is no circus. Can you imagine how special a girl would feel to be surrounded by all those males? You need have no worries about that.