He wasn’t counting the ones he payed for.
Or at least he said he wasn’t…
Why would he mention it specifically if it’s a lie?
And it seems true enough. He has had sex with 2 during the 2 years we have followed him. So 6 total sounds likely.
Keep in mind that Howard apparently hits on every woman he meets. At the age of (I believe) 27, that’s less than one partner per year. Not a good record at all for someone who devotes as much effort to the pursuit as he does.