Last night, as far as he remembers.

‘I think, last night,’ John answered, not looking at Louise. ‘With my girlfriend.’

‘Oh, that’s right, doctor,’ Louise finally spoke up, and came around to the doctor’s side, likely just to be closer to her brother’s naked groin. ‘Just last night. We just can’t help ourselves, sometimes. He’s a real... well, he has a way with me, in the bedroom.’

John was shocked at her words, having been speaking about his real girlfriend, but the doctor simply laughed. ‘I’m sure he does. You two make a cute couple, I can see.’

The glint in Louise’s eye at the doctor’s comment, coupled with Doctor Harper’s gentle fingers still examining his shaft, was enough to cause his dick to twitch. The thought of getting hard right now caused him to stammer the first thing that came to his head. ‘So, what do you think it could be?’ he asked the doctor.

She looked up at him for a moment, before finally releasing his genitals and standing back up, unfortunately leaving Louise even more ease to pry. ‘I have one theory, but it might not be correct. The fact is, I can’t see anything indicating any kind of disease or infection. It’s likely that it’s something on the inside causing this pain, not the outside. So, with that in mind, I think it’d be wise to perform a couple of tests, before I can say anything concrete.’

‘What kind of tests?’ Louise asked, before John could. Her voice had taken on a new tone since the doctor had made her comment about them being cute together, and John wasn’t sure he liked it.

‘Well, I think, and only if both of you are comfortable with it, we should start by seeing if John can still get an erection.’

He looked at the doctor in shock, then at Louise in fear. His little sister was beaming with excitement.

‘I think we’re both okay with that, doc,’ Louise answered, looking back to her brother’s dick.

‘John?’ the doctor asked.