A bit of fan art.
While readying up for a battle against Sonya Blade in Shao Kahn's arena, Mileena decided to scout out the stage and get a feel for it. But while inspecting it she came across a practicing Sonya. It was the perfect opportunity to kill her, as she was intending to. But seeing the empty chains of the slave pillars, a less aggressive alternative came into her mind; having some fun with her food before she ate it.
Running up behind Sonya she grabbed the solider unaware and dragged her to the chains, locking her in the shackles before she could react. She was rendered completely defenceless.
"What are you going to do to me!?" Blade yelled.
"Have some fun." Mileena grinned beneath her veil, her hand coming up to her belly.
"Ah, no!" Sonya gasped, sucking her stomach in and falling backwards as much as she could.
"Oh come now, you keep showing it off." The ninja teased, "You must want it to get attention." And then, dropping her finger into Sonya's belly button, she was surprised with the response of a hearty laugh.
"Huh?" She poked her finger in again, and the laugh began again. With a grin that turned from malevolence to concentrated playfulness, Mileena crouched before her play thing and pulled her forward. Bringing her finger up she buried it deep into Sonya's belly button.
"Ahahah! I'm going to hahahurt youhoo!!" Sonya laughed, her muscles tensing at every thrust into her sensitive navel.