Between the crusty lips that are the same colour as her skin, the sagging/droopy eyelids getting worse from the Botox and the smug smirk I don't know how she takes these photos and think "yep I'll share this"
The difference that can be made from sticking on some lip balm, moisturise your skin etc. is amazing. A genuine smile, not the weird jokers grin or the closed mouth smirk, would also go a long way.
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If she paid for the holiday would they not have been thanking her in the holiday posts they made ? Roisins on private now but I remember at the time people were saying no mention of "thanks Siobhan!" Or anything in stories/posts. Same for South Africa.
I think she insists on paying for something e.g. the tickets for F1 and shouts and roars about how she paid for it for years after. She's the type of person I wouldnt even let buy me a cocktail cos she'd lord it over you FOREVER