Outstanding dere dere scenes of a tsundere character

[pianocello]

What are some of the most outstanding and memorable dere dere scenes of a tsundere character for you?

To get the ball rolling, while I would not certainly call these the most outstanding ever, I would certainly say that the dere dere scenes of Touko Matsudaira (Maria-sama ga Miteru 4th season) is certainly the most memorable of 2009 especially when she is with her special person.

Edit: I sense that there are some people who are not clear on what a tsundere or dere dere mean. While a quick google search can give answers, I'm basically refering to characters who acts unfriendly to either their love interest or others but sometimes suddenly show warmth and affection at unexpected moments.

[pianocello]

I'll add one more since no one seems to want to reply to this thread:

Marlene Angel (Blue Gender)

Marlene Angel is an odd case since as tsunderes go, she started full of tsun and acting cold. Then at the mid-way point, she goes completely into the dere dere affectionate mode and never looks back.

The part where she is showing her warmer side that I liked was around the end of ep 24 where she is going about how she would always be there when she is needed.

[Suwako Moriya]

I'll add one more since no one seems to want to reply to this thread:

It's not that I don't want to reply per se. It's more like I'm having poster's block in terms of what scene(s) I'd want to mention. Unless you want me to second the Touko stuff.

[Fencedude]

Edit: I sense that there are some people who are not clear on what a tsundere or dere dere mean. While a quick google search can give answers, I'm basically refering to characters who acts unfriendly to either their love interest or others but sometimes suddenly show warmth and affection at unexpected moments.

No, I'm pretty sure most people know.

You just went ahead and mentioned the best example of it ever, so there's really nothing much to add at this point.

[Ashyukun]

What are some of the most outstanding and memorable dere dere scenes of a tsundere character for you?
Most prominent one in recent memory would have to be Taiga from near the end of Toradora- "Once more..." Such a perfect dere dere scene for her as well as an incredibly sweet scene overall.

[DenpaWa]

Normally I'm not all "awww" when a tsundere character shows their soft side, since you can often see it coming a mile away. But in Kimikiss - Pure Rouge, I was really taken when Eriko sees Kazuki coming to her apartment with flowers and runs back and forth to the window, completely blank on what to do. The follow-up scene between the two of them was both funny and sweet as well.

[Kouji Tamino]

In Full Metal Panic! and Full Metal Panic! The Second Raid, no moments struck me more than Kaname's breakdowns at key moments in each. It's a testament to the fact that despite all her strength, she's become quite dependent on the idea that Sousuke will always be there for her whenever she gets in over her head.

Also, the haircut scene.