<human>: Can you condense the text into three sentences or less?

This happened about a week ago: as my girlfriend's birthday is coming up I knew something she wanted was a new pair of pyjamas (I'm gonna buy other things too, just this as something else). So a while before the problem happened I was browsing around various clothes stores looking to find something for her, though to no avail since nothing looked her style (just cute cuddly stuff, nothing intended to be kinky).

The problem happened when she came over to my place and we were browsing clothes stores online since I had a voucher that I might as well use, though didn't know what to buy. It comes to the point where I finally find something and order it, only on the right hand side of the page there was a 'similar to your viewings' kind of list, with a few of these things happening to be lingerie. Turns out that since I was looking at nightwear, kinky underwear came up as the same category as adorable pyjamas. She noticed this and pointed it out and I realised I was trapped. I would either admit to her about a potential birthday gift and ruin the surprise, or come up with some weird story that I was browsing lingerie and was wondering about buying it for her (either she'd believe that or think I was looking at the models, which wasn't great since she's had trust issues with me in the past since I'm still good friends with girls she knows I used to have a crush on at times).

In the end I got too nervous and ended up ruining the potential birthday gift, although maybe if I said I was thinking of buying underwear for her I might have gotten something out of it. Damn.
<bot>: Browsed for birthday pyjamas, underwear put under recommended items as it was linked, GF got suspicious and I chickened out and ruined the present since I didn't want to seem like a creep.