Lee Ryan never knew his Blue bandmate Duncan James was bisexual – because the pair had threesomes with girls together.
The 33-year-old star was surprised by Duncan's revelations about his sexuality because the pair bedded women together on several occasions.
He said: "Me and Duncan had threesomes! We did some crazy s**t with each other. In the past we've done some s**t like that."
Lee never felt uncomfortable having sex with his friend, insisting it was fun.
He added to new! magazine: "It's not weird, no, you just high five each other. I think they call it a spit roast."
The singer-turned-actor – who is also joined in Blue by Simon Webbe and Antony Costa – isn't unhappy that Duncan kept his bisexuality a secret for so long and is pleased he finally had the courage to speak out.
He said: "It's his business. And he told me eventually... He seems so much happier now. He feels like he's just cool, man. I saw him the other day and he was really happy. I love him to bits. He's like a soulmate, a brother. He looks like he has a weight off his shoulders."