Ultimate shoulder rides

A few years ago my girlfriends sister was staying in our house and while she was here there was a leak occuring in the ceiling which was due to a cracked tile on the roof. However to fix the problem in the short term I had to climb into the loft hatch which was small and only had a chair to lever myself up. I could only lever myself up so far due to the angle of the roof catching my back. This is when I had to ask my girlfriends sister to help lever me up using her shoulders so I was able to go through the loft hatch at a straight angle. She stood on the chair with me crouched down and pushed me into the hatch so I could try and sort the problem out and when I had to come down I had to lever myself onto her shoulders so she could lower me down. This happened on about 7 or 8 occassions until  the problem was finally solved.