Jacob feels the cooler air chill his ass ... her warmer hand upon his buttocks send a shiver through his body.  The insertion of the thermometer is a bit uncomfortable, but not too bad.  It is her hand upon his hip that he is most aware of ... it has been a long time since he felt a woman's touch.  But it is not sexual ... she is a medical professional.  Still, he feels himself begin to harder, as much as he tries to resist.<br/><br/>He is really aware of his slightly aroused condition as he obeys her direction to lay on his back.  He is glad the towel still drapes him, and its weight makes his growth unnoticeable.  He looks at her, blushing a bit ... "Okay Doc ... whatever you say ..."