Because none of his partners had ever gotten pregnant, he said "I started thinking that I had a problem."
"So I tell them: 'relax, I'm sterile.' It's true,'" he claimed, as the interviewer laughed.
But the country's equality minister Irene Montero didn't find it funny: she called on prosecutors to investigate whether his claims were true, which if so, would constitute sexual assault under Spanish law.
Quitarse el preservativo o eyacular dentro sin consentimiento es hoy abuso sexual y la Ley #SoloSíesSí lo reconocerá como agresión
Presumir ante 26mill de seguidores de algo así refleja la urgencia de poner el consentimiento en el centro. Lo pondremos en conocimiento de Fiscalía pic.twitter.com/SSMM7FOzvb
"Bragging to 26million followers of something like this reflects the urgency of putting consent at the center. We will inform the Prosecutor's Office."
The new law, set to be debated in Parliament in September, would bring much stronger consent laws, and reclassify all non-consensual sex as rape.
If convicted under it, Darrechi could face up to 12 years in prison.
The teen later apologized for his comments on Instagram, BBC reported, saying "Sometimes I don't realize the responsibility that is mine."
"I made a comment that really is out of place and that is not right. Sometimes I say things and sometimes I exaggerate, but here it's just crazy what I said, I wish it had been cut at the edit and no one would ever have heard it."