My concept of Alustriel as de facto ruler of Silverymoon has always been  glossed over by TSR (and now WotC) for Code of Ethics/Code of Conduct  reasons, because I see her as the Realms equivalent of ‘the Queen of  Courtly Love,’ presiding over a Court that amuses itself (along with  delighting in wit, new songs, new inventions or clever craftsmanship,  and fashions) with dalliances, courtship, and lovemaking. Er, lots of  lovemaking. :}
In the same way that real-world kings in some places and times enjoyed  droit de signeur [French for: “As the King, I have the right to sleep  with anyone” :}], Alustriel takes many lovers for short periods of time,  and is one of those rare kind, understanding, warm people who has the  knack of staying close, affectionate friends with former lovers, even in  the presence of other ex-flames. In fact, it’s quite likely that any  meeting of courtiers will contain a majority of folk who have visited  the royal bed or baths at one time or another -- and most of them remain  fiercely loyal to Alustriel and to her dream of Silverymoon. (In fact,  some cynics, such as Torm of the Knights of Myth Drannor, believe she  deliberately seduces political foes to transform them into personal  friends.) The fact demonstrably remains that to attack Alustriel in  Silverymoon will be to evoke immediate defense of her person by dozens  of champions who will lay down their lives to protect hers, even knowing  she’s the “Anointed of the Goddess” and may not really need their  protection.
For obvious moral reasons, published Realmslore glides over all this  ‘free love’ stuff (gakk! orgies! Nonononono!) without saying much  (though if you read the words of Silverymmon-related Realmslore I’ve  written, nothing contradicts it). If you’re portraying Alustriel  correctly in play, she loves to laugh (except when to do so would be  cruel to others), gives hugs, caresses, and kisses freely, has no  personal dignity (nude? Me? Yes, so? Yes, I heard him comment on the  shape and taste of my breasts -- that’s why I was thanking him) but a  LOT of personal grace and charm, and never forgets details about people  (so if meeting a knight she bedded one night eight years ago, she’ll  recall the name of his ailing mother and her ailment, the name of his  new bride, and any ‘touchy triggers’ any of them might have). Most folk  who meet her can’t remain jealous of her or angry at her for long.
The original Mystra seemed to encourage Alustriel to have children (why?  Hoho! SO many mysteries, waved before you!), because she conceived  every nine months and a day or two, giving Faerun a succession of  healthy males in a series of easy births (and being little constricted  or uncomfortable while pregnant, because rather than acquiring a  ballooning belly, the High Lady always put on weight all over, and  retained her poise, balance, and activities). Yes, she’s given birth to  females, and no, I’m not going to say ANYTHING more about that for  future schemes reasons. :} The new Mystra may have other ideas, because  (as far as Elminster knows -- and he doesn’t hesitate to ask her,  straight out) Alustriel isn’t pregnant right now, and shows no signs of  becoming so.
For details of her current consort, see the quartet of Realmslore columns appearing on the WotC website right now.
“Aerasume” is a surname, and all of the tall, strapping lads who bear it  share the same father, who remains Alustriel’s lover on nights when she  needs comforting, but these days is often away from Silverymoon on  explorative expeditions into the wilderlands. As I said: with very few  exceptions, Alustriel remains on good terms with her former lovers, and  manages somehow to keep them comfortable with each other (I guess it’s  like being members of a club one very much enjoys being part of). So  they all get along well together. At long-ago GenCons I often ran Realms  play sessions in which PCs were sent with an urgent message to  Alustriel [a stranger to them by all but reputation] through a secret  portal that admitted them to the Palace but removed all metal -- weapons  and, er, BELT BUCKLES -- and all enchanted materials [items and  garments vanished, spells operating on the bodies of the PCs just melted  away] in doing so. Stumbling over their own falling clothing but under  imperative, overriding orders to get to Alustriel right away (and  bearing a pass that would let them do so), the racing PCs were directed  to a certain chamber, and burst into it to discover that it was taken up  by a vast, shallow bath filled with warm rosewater and naked people  making love. SOMEwhere in all of that sliding flesh was Alustriel. Their  mission: find her.
I loved watching players’ faces, right at that moment.