I just have really high standards - A way of saying you're too cheap to get laid and don't want

A way of saying you're too cheap to get laid and don't want to get sick.

I said I had high standards because I don’t want to get laid and get an STD.

He asked me why I said no. I said, 'High standards.' He said, 'That’s just a lie.'

She said she had high standards because she didn’t want to get laid and get an STD.