The Collaborative International Dictionary of English v.0.48:

Pleasurable \Pleas"ur*a*ble\, a.
   Capable of affording pleasure or satisfaction; gratifying;
   abounding in pleasantness or pleasantry.
   [1913 Webster]

         Planting of orchards is very . . . pleasurable.
                                                  --Bacon.
   [1913 Webster]

         O, sir, you are very pleasurable.        --B. Jonson.
   [1913 Webster] -- Pleas"ur*a*ble*ness, n. --
   Pleas"ur*a*bly, adv.
   [1913 Webster]

WordNet (r) 3.0 (2006):

pleasurably
    adv 1: in a very pleasurable manner; "they were walking along
           the beach slowly and deliciously" [syn: deliciously,
           pleasurably]