"The winner is, PEACH!" the stadium errupted with applause as everyone cheered for the victorious princess. Tails politely gave Peach her praise, though he clapped quietly since he was sitting next to Amy. Fortunately for him, she was too preoccupied to notice.
On one hand she was upset that Sonic had lost the battle, and she still did not like Peach's fighting moves, especially that last one.
On the other hand, she was glad Sonic was okay, and te fact that the princess had gained weight from digesting him provided her with some sick pleasure.

"Sonic," under the defeaning cheers from the crowd, Peach approached her defeated opponent and tried to apologize for killing him to win.
"I'm sorry." truthfully, Peach did not believe for one second that Sonic would forgive her. She had resorted to a rather low blow to defeat him, and actually got him killed. Even though he was alive, that wouldn't change anything, you can't just get over something like that. Even worse, Sonic was probably so disgusted by her actions, that he would likely never speak to her again.

"It's okay." Peach's eyes lit up.
"Really?" she asked completely stunned.
"Yeah, no harm done. You won fair and square. I gotta admit, I did not expect being eaten." Sonic said.
"Eheheheheh, yes." Peach blushed, trying to act like she had done that before. When this was over, she was going to find out how the heck she was able to consume somebody whole!

"Wait, I don't understand. I gobbled you up. I digested you, but...you forgive me?" Peach asked, now realizing how unlikely this seemed.
"Hey, you're talking to a guy who's been turned into a werehog before. Trust me, I've seen weirder. Besides, I'm fine now, and you get to move on to another round, so how could I be mad about that?" Sonic explained. He didn't hold a grudge against Peach, it had been fun fighting her, and she had put up a good fight. His overconfidence had led to his defeat. Next time he'd remember to not to underestimate the princess.

As outrageous as this kindness and understanding could be, Peach couldn't find it in herself to care about that. A warmth filled her as she looked upon Sonic in a new light. She no longer saw him as some random contendor she had befriended, as she saw just the kind of person Sonic really was. He was kind, bold(very bold), and most of all forgiving.
All of those qualities and more made her see him in a WHOLE new light.

"Sonic!" Peach's train of thought was interrupted as the portal that led onto the tournament platformed burst open with Amy Rose. She trapped her man in a firm hug, only to regret it soon after.
"Ewww!" Amy wretched as she wiped off the saliva and mucus off her dress.
"Next time, could you use less slimey attack you big-" Amy's mouth was clapped shut by Sonic.
"Heheh, take it easy Amy." Sonic said. She then pushed his hand down.
"But look at the size of her-" again he stopped her.
"Okay! Listen, dear, how about we get out of here so I can take a shower." Sonic winked at the end there.
"Oh. Sounds good to me." Amy smirked.

Before they left, Sonic said his goodbyes to Peach.
"Good luck with the tournament Peach, I know you're gonna do great." he said while extending his hand.
"You really are too sweet." Peach smiled warmly and held his hands in hers. Ironically she remembered Sonic tasted very sweet as well. With that said, Sonic left, or at least tried to.
"Un, Princess." he pointed out that she was still holding his hand.
"Oh, sorry." she let go. As the two of them left, Amy briefly looked at Peach before turning around.

As they left, the princess should have been pondering either what to do about what she just felt, or exactly how she was able to eat someone, or even think about the overwhelming pleasure she felt as Sonic digested, but instead, she turned around, and saw a most unwelcome sight from the display monitor in the stadium.
"Oh my." her hands were on her plump cheeks as she looked down at her fatty body.