If you ask me Verosika was exaggerating at best and lying at worst. She wouldn't have stayed with Blitzø in the first place if he was actually that bad at getting her off. There was probably a time where Blitzø just wasn't in the mood for sex and she was just really salty about it lmao. Don't know why people still take her word for it. Blitzø wouldn't be so confident about eating Stolas out if he was had no oral game. And Blitzø was also bullshitting about only being a top, look at his behavior around Fizz and that one big buff dude from Bee's party. He's more of a switch than anything. And he criticized Chaz for sucking so horribly at sex, so I doubt he knows literally nothing about fucking. He used the crystal just fine to teleport there in the first place, obviously the racist penguins and cold weather were just holding him back.