As a man, I also have this as a mostly bicurious/gay fantasy to be the object/used! Being penetrated while sucking or receiving double anal does sound hot! (I have done double anal on myself before with dildos like the Demon or two separate small-regular sized dildos!) The fantasy is mostly with men but a mixture of men/women/pegging would also be quite hot! It will probably remain just that though, a fantasy, due to the risks/logistics/etc.

Also, I still need to try being with one man to see if I actually enjoy sucking/being penetrated by a real penis or if it is just a bicuriosity/fantasy!