To put it simply, they do have sex in the manga(obvious), it just doesn't show it. Therefore it can be debatable. Still the question remains yaoi or shounen ai. I consider it a yaoi, but meh, that's me. Anyway, this was my first time reading the manga, I've watched the anime tons of times, but I have to say I was pleased with the manga version, almost died laughing at practically every chapter. ;)
well there are a lot of shonen-ai manga that tell you they had sex or even show one/two szences but when you read yaoi there will be most of the time shown so i would more go for shonen-ai
To put it simply, they do have sex in the manga(obvious), it just doesn't show it. Therefore it can be debatable. Still the question remains yaoi or shounen ai. I consider it a yaoi, but meh, that's me. Anyway, this was my first time reading the manga, I've watched the anime tons of times, but I have to say I was pleased with the manga version, almost died laughing at practically every chapter. ;)