[He isn't much put off by Winry's reaction, given he only went into the details to teach her a rather nasty lesson about something that, in his head, made perfect sense at the time. So her flipping out is pretty much exactly what he expected to see. However what follows is just him being childish as he raises his hand to whisper to Winry:]
She's just mad because we only did boring missionary style stuff.
no subject
She's just mad because we only did boring missionary style stuff.