Adventures in a shared house part 4: fully made up

For those that haven't read parts 1, 2 and 3, I will set the scene. In the 1990s, I shared a house in South London with my girlfriend and two other girls. All of us were in our 20s and we liked to get drunk and muck about – which became increasingly sexual and free as the two years we lived together rolled along.
One Thursday, I headed out after work with my workmates as the girls in the house were having a make up evening – you know the thing, where someone selling make up and beauty comes over, they drink wine and try all sorts of goop and then, slightly pissed, by stuff. I went out as I wasn't invited.
When I got home about 930pm, a bit drunk, I found the three girls in the living room admiring the make up they had all bought and were busily applying it to each other and drinking wine. I asked if they had had a nice evening and they said yes... and showed me their new purchases... then one of them said "we should make you up!"
They were all agreed and I was sort of lightly restrained while they did my make up – full blown whore make up with red lips, thick eyeliner and more... Back then I had long blonde hair and was thin and quite sexy, so I actually looked ok. They coo-ed that I really needed to go the whole hog and should dress up as a girl. Emboldened by wine and feeling kinda playful I agreed and one of them fetched a rather nice, clingy red velvet dress. I stripped to my boxers in the kitchen and, with the help of my girlfriend, put on the dress. I paraded into the living room to applause. But, said my GF, it's still not quite right: you need stockings. Yes they all agreed and she was dispatched to our room to find some. She reappeared with a pair of self-holding stockings and I was ordered by all to put them on. I sat on the arm of the sofa and did what I was told, pulling them up on to my legs and letting them rest just shy of my balls.
"it's not right," said one of the flatmates... "You need to lose the boxer shorts."
Yes off they must come they chanted and, feeling a bit slutty, I took them off to great cheers...
Now, I had never dressed up like this before and I was quite enjoying it – especially the stockings and knowing I had no boxers on. And I started to get aroused. A bulge began to form...
"look he's enjoying himself!" cried one of the girls... to which my cock responded to the attention by getting harder and sticking up in the dress like a velvet tent.
You should show us, said the younger of the girls... get it out! Yes they all chorused, get your cock out you slutty boy! I was quite turned on now, so I did what I was told, hoisting the dress up until my cock sprung out.
"Wank it" said one of them very seriously. I want to see you wank in stockings.
I did what I was told. Stood there in stockings and masturbating in front of three girls was a massive turn on.
They jeered and cat called for a bit then slowly it went quiet and I realised they were watching now as I rhythmically masturbated my glistening cock and enjoying it.
This was confirmed when one of them popped open her jeans and stuck her hand into her panties and began to masturbate herself gently, not breaking eye contact with my cock. Soon the other house mate followed suit and pretty quickly my girlfriend slid off the sofa and, on her knees before me, slowly started to lick my wet cock before taking it in her sweet soft mouth and started to suck me off. I was so turned on in my stockings, my girl sucking my hard cock in front of two 20-somehting girls both watching and wanking in front of me.
Pretty quickly I was getting close to coming and started to moan as much
"Don't stop I'm cumming" gasped the first flatmate and, as my gf slowed her ministrations, the flatmate gasped and came really hard against her hand, shuddering and throwing her head back. It was awesome and I couldn't hold on. I slowly drew my gf up, undid her jeans, yanked them and her panties down, bent her over the arm of the chair next to the sofa and slid my cock into her wet, warm, beautiful pussy and started to thrust.
Looking down at her lovely white peachy bottom and my stockings, my cock sliding in and out, was too much. I came like a hose into her pussy, shuddering and barely able to stand. As I slumped over her back, I looked up to see the final flat mate masturbating vigorously, with the other flat mate fingering her pussy and gently biting her nipple. Pretty soon the third flatmate exploded in orgasm, pushing herself onto the other girl's finger and shrieking with pleasure.
As we relaxed afterwards, my gf said "that was awesome, but don't forget to take your make off before bed or you'll end up going to work like that... and no one will believe why"
What, I said, because they'll think the story was all "made up"?