I could possibly kill a certain male TV character for saying this tonight. I suppose if it wasn't getting towards the end of the show, I might not care as much but...oh well. Mine hasn't kissed yet but, *sigh* he totally lied to his shrink you don't hesitate to tell personal details about your "little sister", you don't refrain from any relationships except your relationship you claim is strictly business with her and you don't feel lost when she's on maternity leave.

If any of the guys from my ships said that...

lol I don't think you passionately kiss or make love with someone who is like a sister to you.

LOL

Ziva apparently said this about Tony, according to Ray.

TOTAL BS.

^Yeah, Tiva isn't a sibling relationship, I believe Booth and Brennan once said that about eachother...and as for mine (Goren and Eames from LOCI, Goren's words) even his brother...a druggie knew otherwise.

Depends on the ship...
For some of my ships I'd laugh and say "Yeah, then I guess yur relationship is incest. My current OTP is Booth/Brennan. Brennan is currently pregnant with his child. Yeah, don't think they can say they have a brother/sister relationship. Angela/Hodgins are married, so yeah.
@Jeffersonian, after Caroline got Booth/Brennan to kiss under the mistletoe in Season 3, Brennan said "It was like kissing my brother." To which Caroline said "You sure must like your brother."

Other ships I'd say you're only fooling yourself.

But for one of my ships, 11/Amy, I'd just sigh and say "I've given up anyway." Especially after the last episode.