Mookie says:

Since it became mandatory among idiotic street savvy male morons to provide an "I'm not homosexual" disclaimer before any endearing or observational comments regarding the same sex, the term "no homo", in addition to it's obvious stupidity, has become standard and lame. 

I instead challenge you to take absurdity a step further, by adopting the term "no incest". 

It works well with any comments about relatives. 

For example: Hey sis- I really like that bathing suit- no incest. 

Or: Hey dad - I love your boots - no incest.

Let's make everybody uncomfortable.