From what I can remember:
-When Jean is trying to get Colossus back into the X-Men during World Tour, she asks "Don't you mean you want the person you love so much to maybe love you back a little, Peter?" Peter promptly and stenrly answers with "Get out of my head and out of my house, Marvel Girl. I have nothing left to say to either of you."
-In the arc's epilogue, Peter and Logan are showering together. The dialogue isn't really that shippy, especially since it's mainly about the Acolytes and Logan having a date that night. Peter with a smile says, "It is good to be back you know, Logan." Logan, also smiling, says, "Good to have you back, you big, ugly freak." It just reeks of love somehow, don't ask me how so.
-In the Return of the King arc, there's a two-page scene where Colossus says he doubts Logan tried to kill Scott. He then tries to say something and mentions how they may not be alive for more than a few days, then saying "I do not want to die with any regrets, Wolverine. Likewise, I think it is healthier just to air our little secrets than to keep them bottled up inside. Don't you agree?" to which Logan (who clearly know what Peter is talking about and wants him not to say it out loud) replies with a smirk, "No, it's healthier to keep them bottled up inside. A lot healthier." Then Colossus says "Well, I am supposing now would not be a good time to mention this 'fastball special' move I thought up last night either, eh?" Sure, you can say he's joking because they had already taken out their opponents. But in my dirty mind, the phrase means something a bit more dirty.
-When Magneto has everyone pinned down at the end, he begins to torture Wolverine. Colossus somehow resists Magneto's hold and beats the living crap out of him, yelling "Nobody lays a hand on Wolverine, you hear me!? Nobody!" Everyone's shocked at his sudden turn of violence.