Aiden and Ethan

                                        

Ethen and Aiden are twins,(also called "the Alpha Twins").

In their time as Omegas they were badly mistreated by the brutal pack members. 

After Deucalion helped them to develop their ability to fuse both of their bodies in one giant creature,they killed all of their pack members and became Alphas and joined the Alpha Pack.

Ethen is homosexual and was dating Danny while Aiden was prior his death with Lydia Martin.Aiden died trying to save to Scott saving Stiles.