Ask Carl for help with it.

Steffi knew where the thermometer had to go, but wasn't sure she'd be able to do it on her own.

"Would you mind... helping me Carl?" Steffi said meekly.

Carl had a plan and he couldn't afford to blow it now.

"Yeah sure..., why don't you put this pillow under you." He indicated a cushion at the end of her bed. Steffi had almost forgotten she was still topless.

Carl stepped towards the bed whilst the prone Steffi lay there, bum pointing in the air still encased in her plain cotton panties. Carl lowered them and took the lube in hand.