Emma was my best friend, we did everything together. So one weekend after her being at uni for four months, she said she was coming up to London and wanted to do some shopping. I met her at my local station and she looked fabulous! Always the skinny one of our usual group, Emma had deffo gone up a dress size and looked amazing. I ouldn't help stare at her tits that strained against her blouse. I gave her a hug and we decided which shops to hit first. Within two hours, we had ann outfit each and were now thinking about treating ourselves to dresses. We got to a packed shop and eventually fought our way into the changing room. Emma was swooning over her dress as I hung mine up and began to undress. Fighting my way out of my blouse in just my bra and knickers, Emma bent down to shimmy her dress down. I'm not sure what happened but I got the urge to press my front against her arse. Emma's body relaxed and she stood upright and began groping my pussy through my knickers. Kissing her neck a