Take her to Karakura Town.

Soi Fon's face beamed at the thought of escorting Ichigo to Karakura so she could see Yoruichi again. She'd love to be able to go to the world of the living even if it was for a very short time to see her friend again. Then she remembered that she was a Captain with a high amount of responsibility. Not only that, she was a Captain who had been given ORDERS to bring Ichigo back to Kurotsuchi's lab for further testing. Soi Fon's heart tore at her. Her sense of duty loomed large trying to block out the pain she felt of missing her friend. Then she looked at Ichigo's expectant face and thought, "He's trying to con me by playing with my emotions." Then she growled at him.
Soi Fon took one menacing step toward Ichigo, and immediately his expression changed from one of hopeful expectation, to sheer terror. She spat at him, "You will not play with my emotions to try and get yourself freed. I am NOT a Captain that can be swayed from her mission no matter how wrong it may be. "
Ichigo tried one more time, "But wouldn't you like to see Yoruichi again?"
She wanted that more than anything, but the way he was using this weakness against her would smudge her flawless duty record. She said, "I'll see her when I want, and as for you," she jerked the chain that held his hands behind him, straight upward, causing him to bend at the waist, then she brought her knee up to meet his chin. He fell forward in a heap. "You're going back to Kurotsuchi, while I approach Yamamoto and ask if I can pay Urahara's shop a little visit."
Soi Fon grabbed Ichigo's **** body by the back of his collar and dragged him through the streets of Soul Society and straight back to Kurotsuchi's lab where she deposited him at the door and left him there.
A/N: Uh-oh! Always remember, NEVER play with a woman's emotions! It'll only get you killed, or very nearly so! Give it another try – and thanks for playing!