The shoulders thing is pretty forward for a first escalation. Start by touching her arm (or leg if it's convenient) when you're talking, then work your way toward more overt kino.
The very fact that you said "because she was cold" makes me think that it was an uncomfortable and/or out of place move from the start. If it made sense to do it, you wouldn't have to add that explanation.
The very fact that you said "because she was cold" makes me think that it was an uncomfortable and/or out of place move from the start. If it made sense to do it, you wouldn't have to add that explanation.