They make me laugh, as usually Truffles doesn't like sharing with Tilly (bit of a dominance thing) but maybe she's mellowing out a bit with her. Just shows patience is the key, not all bonds happen quickly. When I lost Humbug, the apple cart well and truly got rocked between BonBon and Truffles.
The original idea, was for Truffles to grow up before I got another youngster, but fate got in the way, with the loss of Humbug, and Tilly came along.
Tilly hasn't got an ounce of malice in her, she's quiet, and loves BonBon, but is still a bit apprehensive of Truffles, and only this week has started to climb down off her high horse, and spend time with her. She usually heads for my shoulder at lap time, but has started to spend more time on my lap.
They're really quite a funny trio

BonBon doesn't care either way, she just likes the quiet life, regardless as to which one chooses to sit in with her.