Jon lost consciousness as he was slowly absorbed into Sarah's bloodstream. When he came to, he still couldn't move but could only feel his face. It was covered by a cloth, and his mouth was wet, but it tasted different from Sarah's pussy. Jon could feel droplets form in his mouth, which then dribbled down his chin. The drops had a salty taste and there was a weird smell in the air. He tasted deodorant.
Jon realized he was Sarah's armpit, and she was going through a heavy workout. Jon was drooling her sweat and tasting her deodorant and sweaty shirt.
For what seemed like hours, Sarah's arm brushed back and forth across his face while he kept drooling sweat. Finally, Sarah took off her shirt and Jon could see again. She walked to the shower, but Jon's view was almost always blocked by Sarah's arm.
She turned on the shower, and the next thing Jon knew, he was being scrubbed and washed by her hand, which seemed enormous. He tasted soapy water, then towel as Sarah dried off, then a pit stick was shoved into his mouth and rolled all over. Then he tasted perfume.
By the way Sarah treated herself, it became apparent to Jon that she was unaware he was a part of her. Most likely, she thought he had flushed him away as piss.
Jon realized he might be stuck like this for the rest of two months.